Rotary machine.



E. TROY.

ROTARY MACHINE.

APPLICATION man OCT. 13. 1916.

Patented Dec. 25, 19171 a m m w. K 2 m .m 2 J A M m ,0 WM m H F a i i E. TROY.

ROTARY MACHINE.

APPLICATION FILED ocr. 13. l9l6- i 4 a 4 w Mm m 1 2 M s n lg .t m w W W M a v I WW 0 e H 6 T n F I D H j m H HM 1 d 8. 2mm v1 LAW 2 WIN W MM lIVIJH, m I I a I II P [Ii mm.

Witnesses Invenor UNITED STATES- rAtrnivr orrion.

EDWARD TROYQOF'LACEY, rown.

ROTARY MACHINE.

Specification of Letters Patent. Patented 'DeC. 1917. 7

Application filed October 13, 1916. Serial No. 125,431.

supporting said member for rotary move-T ment in a novel manner andactuated in a j novelvmanner by the rotation of said member, the present machine'being capable 'of use for various purposes, such as a carousel, merry-go-round or otheramusement device.

\Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in thecombination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment ofthe in vention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein Figure 1 is a plan view of the machine, portion being broken away.

Fig. 2 is a side elevation of the machine.

Fig. 3 is an enlarged sectional detail to illustrate the parts at the lower end of each screw.

The machine embodies a suitable base 1 provided with an annular upstanding track 2 provided with an upper sinuous or zigzag edge having the upwardly and downwardly extending inclined portions 3 and 4 respectively.

Disposed above the base is a member 5 mounted for rotation about a vertical axis, and which can be used as a carousel, merrygo-round, or other rotated structure. Secured to the member 5, preferably within the same, are vertical bearings 6 in which downwardly extending screws 7 are threaded, and said screws are supported for vertical movement by the track 2, although the member 5 remains in the same horizontal plane. Spur gears 8 are secured to the screws 7 at the lower ends thereof, and supporting balls 9 are disposed within socket members 10 carried by the lower ends of the screws, anti-frictional balls or elements 11 being disposed between the balls 9 and the socket memberslO to reduce the friction. The balls 9 work in a continuous groove 12 with which j the upper edge of the track 2 is provided, to enable the screws 7 to move along thetrack with" minimum friction, suitable lubricating means being provided for lubricatingthe screws. The pitch of the screw threads must be 1n proportion to the inclinations of the upwardly and downwardly extendin portions of the tracln'and the diameters off the pinions 8, whereby said screws are moved upwardly and downwardly properly during the rotation of the member In order to reverse'th'e rotation ofthe screws 7 as they pass from the ,upwardly'."

extending to the downwardly extending" portions of the track, and .vicefversa, inner and. outer r'a'cks13'and 14are p one-ea with bracket s'lo secured to the inner and outer sides of the track 2, andsa'id racksextend along the upwardly extending" and downwardly extending-portions?) and4, re

spectively. As the screws 7 move up the portions 3, the gears 8 thereof mesh with.

the inner racks 13, and as the screws move down the portions 4, the gears 8 mesh with the outer racks 14, so that the screws are rotated in reverse directions. Thus, as the member 5 is rotated, the screws 7 are moved in an annular path or circuit, and the screws not only move around the track 2, but are reciprocated vertically and rotated in reverse directions about their axes, thus providing a novel arrangement, but the member 5 remains in the same horizontal position, although it is supported by the screws 7. \Vhen the screws 7 reach the portions 3, the gears 8 meshing with the racks 13 will rotate the screws in the proper directions to screw upwardly into the bearings or nuts 6, and when the screws reach the portions 4, the gears 8 in meshing with the racks 14 will rotate the screws in the opposite direction so that they are unscrewed. The screws thus follow the inclinations of the track in order that they will be reciprocated vertically.

As a means for cushioning the parts as the screws are reversed when moving from one rack to another, each rack 13 and 14 is provided at its forward end with a loose piece 16 pivoted to the rack, as at 17, and moved toward the track 2 under the influence of its spring 18. Thus when the gear 8 of each screw moves from one rack to another, it first encounters the piece 16, which can yield, thus providing'a cushion as the rotation of the screw is reversed.

In order to transmit the power for the rotation of the member 5, said member is provided with an annular rack 19 with which a pinion 20 meshes, said pinion being carried by aradial shaft 21 journaled inra bracket 22 attached'to the track2. A pulley wheel 23 is carried by the shaft 21 for the reception of a power belt.

As a means for retarding the movement annular series of screws threadedly connect ed to said rotary member and movable along said track, and means for reversibly rotating said screws as they move up and down the portions of the track.

'2. An amusement machine comprising an Copies of this patent may be obtained for annular sinuous track, inner and outer racks assembledwith the track, a rotary member above the track, an annular series of screws threadedly connected with the rotary member and movable along said track to support said member, and gears carried by the screws and alternately engageable with the inner and outer racks as the screws move on the upwardly and downwardly extending pore tions of the track. 7

3. Anamusem'ent machine comprising an annular sinuous track, inner and outer racks assembled with the track, a rotary member above the track, an annular series of screws threadedly connected with the rotary memher and movable along saidtrack to support said member, and gears carried by the screws and alternately engageable with the inner and outer racksfa's the screws move on the upwardly and downwardly extending portions of the track, the racks having yieldable portions at their forward ends for'the engagement of the gears as they move from one rack to another. I p

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in'the presence of two witnesses.

g EDWVARD TROY. 7 WVitnesses: I

Bnss MARTIN, FRANCES MEEK.

five cents each, by addressing the commissioner of Patents.

Washington, D. 03f v 

